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<p class="Decl"><strong>procedure</strong> Assign(Source: TPersistent);<strong> override;</strong></p>
<h2>Description</h2>
<p class="Body">Handles copying the source surface defined by the <strong>Source</strong> parameter to the current instance.<br>
  Internally it calls <strong>ChangeSize</strong> on the current back-end instance to set the new size. Then it copies the content of the source surface to the allocated surface via <strong>MoveLongword</strong>.<br>
This method is used during switching of the back-end classes in TCustomBitmap32.</p>
<p class="Body">&nbsp;</p>
<p id="hidden">[See also]:</p>
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